Counterbalance for stove doors



July 21, 1931. c E. KLEIN COUNTERBALANCE FOR STOVE DOORS 7 Filed Feb. 6,1930 2 Sheets-Sheet 1 v INVENTOR 0a rlflfflezn .ATTORNEY Mwi.

July 21, 1931. c. E. KL;EIN

CQUNTERBALANCE FOR STOVE DOORS Filed Feb. 6, 1930 ,2 Sheets-Sheet 2 M nz w w 4 a wfiNEss ATTORNEY Patented July 21,'

CARD 1:. KLEIN, OF'TVWILLOW GROVE, PENNSYLVANIA I j onmmmmwm FOR STOVEDoom irivention reli-tesfto an device for mm 7 tetiiriiig" 8t door of}:stove in' closed position tending operip v 3 5. An object of the inventioniisthe provision of 'aj device for'ihaiiltainihg a'door'elosed orteiidfng c losethefdoor when it is open'in v I elos'e' the door wh n thedoor is which :i levef pivottlly mouiited intermediate fis'en-dsis heldif: ai predetelniined position link do wiivv'e rdlyithet the elm'willforce the door into a'elosedfposition;

fiiithe' robjeet "ithe invention isthe pro- 4 vision ;of a doori h-avindepending arms Whiohi are eurvedfoutwardljr and then Vi n- Wardly indcoi ineeted bygmeaiis oif'links to he is which 1 are pivemuy mounted-o1'1 the walls of the even; a: weight or spring be} g 'cooperativelygssoeiat d with the" fiee d} of e'aelr lev'eif tending" {to move the arm8 we; positi elo's'ed operative p'osi-tfliomie This"invention Will bebestnnderstood from e, ofis'ide'ration 6f the following detailed dei-1325 'seription; in View of the 'aeoonipanying drawings'vforming a partof the specifie'ation;

nevertheless it is to be linderstoodthgtt the i not oonfined to thediscloslii'ey being susceptible of such hangesand modifio-efieationswhich Shani define no material deperture from the salient features ofthe if vent/ion as exp essed the appended claims. eiiewingszi" j"Figiire I is a fragmentary viewin elevation oi thefearrof stove d orhowi my in:- vf'eritioii applied thereto.

parts-i 11 an operative position for maintainingthe'doorclosed. f'

" Figure 3 is a; siniil'et'ij section? showing a slightlyino'dified formof the-- inventionie- Figur 14' is a vertical section of a'modified formof he device for maintaining the stove door' olfosed rj f 8 J F-igoreis'a veyticalsectim of afu rther nrodifiedzformof the invention. I

I Figureo is e vertiealjseetion ofalstillfiirthermodificationoftheinventioh;

I *Refeii'ing' moreparticnlarly to the difaLW- iege; to'designetes a 1stove having a door fenfoiei ngermifiiofthe door by means of a onfwhe're willjforce the door wits Figs; Land 2 has follows: When the door e2 's veitieai fs'ectioii showving the frame ll mounted zit the frontacrossthe lower end of which is extended a bar 12'. A

Curved portion 13 is formed at the upper inner edge of the bar toprovide 2; rest as will be g neser'itly explained.

Curved arms" 14* extend from the lower edge of door 15 and are formedwith curved seats; which rest upon the curved portion 18 of the bar 12.

thirdly; as at 17, and then inwardly, as" 5st 18'.

A li'fik 20 has or'ie end pivoted upon a rod 19 which is carried byhearings in the free ends 18 of the arms 14. 'Theother end of the linkis connected to the outer endof a lever pivotedat 26', upon an oppositeside wall 27 of the stove. 8 1 V The free end of the lever 25is'provided with alink 29 Whiehreeeives' the lower ends [of sprihgsBOWhieh aresecur'ed, at 31*," to a side Wall of a stove; The springsmay beenclosed Within ea'sin'gs formed in the oven or they may be mountedexteriorly of the stove. p 8 The operation of the device shown in 15 ismoved outwardly the curved poi'tioii I4 's'wirigswupon the curvedportion 13 and the bar 12, thesem'embers' thereby acting, as a hingeforthedooi'. Asthe Wardly' the free ends 18 of the arms 14 nrioveupwardly until they reach the, stop 50.- d The links 20 are likewiseCarried upwardly and moved toward a" horizontal position While the innerend of the leve 25 is moved above thehorizonta' l plane and at an 'angIeto the normal horizontal position of the lever 25. The 'OPPOSiGGEGIld oithe lever is moved dowh- Each rm, as shown at 1 6',

is; extended downwardly; then curved out door swings outweirdly againstthe tension of the springs 30.

'Whenthe door is released the springs will move the lever 25 to itsnormal inoperative position and cause the link 20 to move the arm 14150the position shown F ZWhence the spying will aid iii maintaining thedoor The modified form shown in F 3 eon-i tains' al l' the essentialelements of the struc- I tureidisc'lose'd in Fig. 2 except that aweightI 49 is employed-ilisteacl ofthe springs The lever 40 is pivoted at 41upon the side i 2 mounted upon a rod 56 carriedby the curved 1 wall 27of the stove and has one end 42 at 48 upon a side wall of the stove.This construction also includes a link 40 and a pair of levers and 47upon the opposite side walls of the stove.

. The operation of the deviceshown in Fig. 3 is as follows: The door 15is moved outwardly from the frame 11 so'that the curved portion of thearm 14 will ride over the curved'seat of the bar 12,- thereby causingthe portion 17 of the arm, the link 20, the levers 40 and 47, to bemoved to the dotted line position so that the weight 49 will beelevating tending to close the door 15 at all times and for maintainingthe door in snug relation with the outer face of the frame 11.

,Referring more particularly to Fig. 4 it will be seen that a modifiedform ofthe invention is disclosed in which links 55 are arms 57 formedat the bottom of the door 58, which normally is in operative positionwithin a fr'ame'59 of the door of the stove 60.

A lever 61 is pivoted at 62'on a side wall of the stove, while theopposite end is pivoted at 68 to the free end of the link 55. A lever 64is pivoted at 65 onaside wall of the stove 60 and a link 66 connects thelever 64 with the j lever61, as shown at 67 and 68. A weight 69 issecured'to the outer free endof the lever 64. v f

The operation of the, device shown in Fig.

i 4 is as follows The door 58 rests upon a seat 70 formed at the upper'end of the bracket- 71 and is adapted to swing on said seat to an openposition. Whenthe door is moved downwardly the link 55 is moved inwardlyand upwardly, thereby raising the levers 61 and 64 and the weight 69: sothat the weight. will tend to close the door when it is opened. When thedoor is released, weight 69 will descend, thereby moving the levers 61and 64-to the position shown in Fig. 4. I In the modification disclosedinFig. 5 the door 72 is mounted for swinging movement on the member 7 3and a pair of links 74 are con' nected to the downwardly projecting arms'the downwardly projecting'arm 75. l When the bar 7 2 is moved outwardlythe arms 5 move upwardly, forcing the links 74 of the springs 80. Thesesprings tend at all times to close the door so that when said door isreleased the lever 77 will be pulled downwardly by said springs and movethe door into snug engagement with the outer wall of the frame84 whichembraces the opening at the front of the stove.

- Another modified form of the invention is.

disclosed in Fig. 6, and the door- 85 is mountedfor swinging movement ona support 86 which is similar in construction to the form describedabove. Arms 87 project downwardly from oppositeends of the bottomportion of the door and carry-a rod 88 which extends across the bottomof the doorrin a manner similar to the disposition of therod 19disclosed; in Figure 1.

A lever'89 is pivoted at of the stove 91 and has its outer free endconnected with springs 92 secured at 93 to a side wall of the stove. Theouter end of-the lever adjacent the door 85 is curved downwardly asshown at 94, and is provided with a horizontal slot 95 to receive therod 88 When the door 85 is swung outwardly on Y on a sidewall its hingedportion, the arms-87 are moved inwardly and upwardly, thereby moving therod 88 through the slot and elevating the portion 95 of the lever 89.The opposite end of the lever is moved downwardly against the tension ofthe springs 92. for restraining downward movement of theinner freeend ofthe lever, thereby tending to'move the door 85 toits closed position;When said door is released the springs will come inte play for actuatingthe lever 89 and thus move the door insnug relation with the outer wallof the frame of the door. I

1. Ina stove, a door frame, axbar carried by the frame, a door having aseat to receive the bar for pivotally supporting the door, the doorhaving a curved arm extending inwardly from the door, a leverpivotallymounted intermediate the ends and normally lying in ahorizontalplane, a link connecting the free endof the arm to one end ofthe lever,and means connected with the other end of -thelever andresisting movement of the lever, the lever and linkco operating toretain the seat of the door on the bar. 7 V r f r 2. In astove, a doorframe, a bar carried by .the frame, a door having a seatto receive thebar for pivotally supporting the door, a pair of-arms curvedoutwardlyand inwardly from the lower end of the door and-having a free endextending beyond the confines of the frame, horizontally disposed leverspivotally'mounted intermediate the ends thereof on the stove, a rodcarried by the arms, a

link pivoted at one end on the rod, the other end of each link beingpivotallyconnected V of the door on the bar.

door on the bar.

, 3. In a stove,adoor frame, a door mountedfor swinging movement on theframe, arms projecting downwardly from the lower edge a rod supportedbythe arms, a, o

of the door, 7 link pivotally mounted at one end on the rod, a leverpivotally mounted on the stove and having one end pivotally connectedwith the other end of the link, andmea'ns connected With-the lever forrestraining movement of .said lever When'the door is opened, "and forreturning the doorvto closed position, the lever and link co-operatingto retain the seat CARL E. KLEINQ:

I so,

